U.S. patent number 4,468,829 [Application Number 06/430,816] was granted by the patent office on 1984-09-04 for cleaning and deburring tool for spent cartridge cases.
Invention is credited to Betty L. Christensen.
United States Patent |
4,468,829 |
Christensen |
September 4, 1984 |
Cleaning and deburring tool for spent cartridge cases
Abstract
A tool for cleaning and deburring spent cartridge cases by means
of a cleaner at a first end of the tool used to clean the primer
pocket of carbon and other residue remaining in the pocket is
disclosed herein. The other end of the tool is adapted to deburr
the bullet end of the cartridge. The deburring tool is adjustable
through a range of sizes to accommodate various sized cartridges.
The cleaner end of the tool may be provided with different size
cleaners to accommodate various sized primer pockets and may be
used alternatively to reshape the primer pocket when crimped
primers were used.
Inventors: |
Christensen; Betty L.
(Chandlers Valley, PA) |
Family
ID: |
23709166 |
Appl.
No.: |
06/430,816 |
Filed: |
September 30, 1982 |
Current U.S.
Class: |
15/105;
15/104.001; 15/104.04; 15/104.05; 408/211; D22/199 |
Current CPC
Class: |
A47L
25/00 (20130101); B23B 5/167 (20130101); F42B
33/10 (20130101); Y10T 408/899 (20150115); B23B
2215/10 (20130101) |
Current International
Class: |
A47L
25/00 (20060101); B23B 5/00 (20060101); B23B
5/16 (20060101); F42B 33/10 (20060101); F42B
33/00 (20060101); A47L 025/00 (); B23D
075/00 () |
Field of
Search: |
;15/104.03,104.04,104.05,14.1R,105,236R,14R ;86/24,28,33
;30/125,300,310 ;7/158,167,157,138 ;408/211,212
;81/438,439,177E |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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|
|
|
|
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2518187 |
|
Apr 1976 |
|
DE |
|
571375 |
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Jan 1976 |
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CH |
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Primary Examiner: Coe; Philip R.
Assistant Examiner: Stinson; Frankie L.
Attorney, Agent or Firm: Lovercheck; Wayne L. Lovercheck;
Charles L. Lovercheck; Dale R.
Claims
The embodiments of the invention in which an exclusive property or
privilege is claimed are defined as follows:
1. A tool for cleaning and deburring spent cartridge cases
comprising:
a body member,
the body member having a first end and a second end,
a bore extending axially therebetween,
an outer deburring means formed in the first end of the body member
for deburring the outer periphery of a spent cartridge case,
internal threads at the second end of the body member,
an inner member telescopically supported in the bore of the body
member adjacent the first end thereof,
an axially extending slot in said body member and a screw extending
through said slot and threadably engaging said inner member,
said screw having a head,
said head engaging the outside of said body member for holding said
inner member relative to said outer member,
the inner member having external deburring means for deburring the
inner periphery of a spent cartridge case,
the deburring means on said inner member and the deburring means on
said outer member being adapted to engage a bullet end of a spent
cartridge case whereby said cartridge case will be deburred when
the tool is rotated about said cartridge case with the inner and
outer members in engagement therewith,
a holder,
said holder engaging the internal threads at the second end of said
body,
a cleaner supported at a first end of said holder,
and a reamer tool supported at a second end of said holder.
2. The tool for cleaning and deburring spent cartridge cases as
recited in claim 1 wherein the cleaner is threadably supported at
the first end of the holder,
the cleaner having a first blade at a first end,
a second blade at a second end,
and being threaded along its midportion whereby the cleaner may be
held in the holder with the first blade in working position adapted
to work on a first size primer pocket and may be held in the holder
with the second blade in working position adapted to work on a
second size primer pocket.
3. The tool for cleaning and deburring spent cartridge cases as
defined in claim 1 wherein the reamer tool is threadably supported
at the second end of the holder,
the reamer tool having a first reamer at a first end,
a second reamer at at second end,
and being threaded along its midportion whereby the reamer tool may
be held in the holder with a first reamer in working position
adapted to work on a first size primer pocket and may be held in
the holder with a second reamer in working position adapted to work
on a second size primer pocket.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention:
The invention relates to the handling and refurbishing of cartridge
cases and more particularly to a method and apparatus for cleaning
and deburring cartridge cases and their primer pockets prior to
reloading them with powder for reuse.
2. Description of the Prior Art:
The reloading of rifle and pistol cartridge cases has become
popular with sportsmen throughout the world. This is attributable
to the economics of reusing cartridge cases which have been fired
rather than constantly purchasing new ammunition and discarding the
used cartridge cases. Cartridge cases when properly and carefully
reloaded may be reused many times. The used cartridge cases have
burned residue in the primer pockets and, in instances where
crimped primers were used, a misshapen primer pocket which must be
reshaped. At the bullet end of the cartridge the open end may be
burred and misshapen.
To perform the various operations required to clean and deburr
cartridge cases the reloader has been faced with use of a number of
tools. The principal objective of the present invention is to
provide a simple method and apparatus incorporating a single tool
which can be used in conjunction with reloading to quickly and
easily clean and deburr cartridge cases.
It is a further object of this invention to provide a tool which
will clean primer pockets when crimped primers have previously been
used.
It is a further object of the invention to provide a tool which
will deburr and clean a variety of sizes of cartridge cases.
SUMMARY OF THE INVENTION
The above objects are achieved in accordance with the present
invention by providing a tool in which the principal features
comprise a body member having a bore extending axially from one end
to the other. At one end of the body member, means adapted to
engage the outer surface of the bullet end of a cartridge are
provided. An inner member is adapted to move within the axial bore
and is provided with locking means such as a thumbscrew to hold it
in position. At one end of the inner member, means adapted to
engage the inner surface of the bullet end of a cartridge are
provided.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an isometric side view of the body member with inner
member shown in phantom and a cartridge case in engagement.
FIG. 2 is a cross sectional side view of the body member and holder
according to the invention with a cartridge case in engagement.
FIG. 3 is an isometric view of the inner member according to the
invention.
FIG. 4 is an isometric view of the body member according to the
invention.
FIG. 5 is a cross sectional side view of the holder according to
the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Now, with more particular reference to the drawings, a tool for
cleaning and deburring spent cartridge cases is shown generally at
10. The tool 10 has a cleaning half and a deburring half. The
deburring half has a body member 11 which may be generally
cylindrical in shape and has a first end 12 and a second end 13.
The body member has a bore 14 extending axially from the first end
to the second end. The first end 12 of the body member is the
deburring end and is provided with outer members 15, 16 and 17. The
outer members 15, 16 and 17 have engaging surfaces 18, 19 and 20
which are adapted to engage the bullet end of an empty cartridge
case and deburr the outer edge as the cartridge is rotated relative
to the body member 11. Internal threads 21 are located at the
second end 13 of the body member 11 in the bore 14. The internal
threads 21 are adapted to engage threads 31 or 32 on a holder
22.
An inner member 23 is supported in the bore 14 of the body member
11 adjacent the first end thereof. The inner member has engaging
surfaces 24, 25 and 26 which are adapted to engage the inner
surface of the bullet end of a spent cartridge case such that said
cartridge case 50 will be deburred when the cartridge case is
rotated relative to the body member 11 when the inner member 23 and
outer members 15, 16, and 17 are in engagement with the cartridge
case 50.
The inner member 23 may be adjustable through a range of positions
in the bore 14 in the body member 11. The inner member may be held
in position by a thumbscrew 27 which is inserted through a slot 28
in the body member 11. The thumbscrew may be brought into
engagement with the inner member 23 to hold it in the desired
position relative to the outer members 15, 16 and 17.
The holder 22 for cleaning the primer has a first end 29 having
external threads 31 and internal threads 33. The holder has a
second end 30 having external threads 32 and internal threads 34.
The external threads 31 and 32 are adapted to engage the internal
threads 21 of the body member 11. Therefore, the holder may be
attached to the body member by either the first end or the second
end thereof.
A cleaner 35 is adapted to be supported in the internal threads 33.
The cleaner 35 has a first blade 36 which is adapted to clean a
primer pocket of a cartridge case 50. The cleaner also has a second
blade 37 which is adapted to clean primer pockets of a different
size. The cleaner is also provided with a threaded midsection 38
which is adapted to be supported by the internal threads 33 of the
holder 22. The cleaner may be supported on the holder with either
the blade 36 or the blade 37 in a working position to clean the
primer pocket of cartridge cases. Which blade is used depends upon
the primer size; for example typical pistol or rifle sizes.
A reamer tool 39 is provided having a first reamer 40 and a second
reamer 41 of different sizes adapted to clean primer pockets where
crimped primers have been used and the pocket requires reshaping.
The reamer tool is provided with a threaded midsection 42 which
will permit the reamer tool to be supported in the holder with
either the first reamer 40 or the second reamer 41 in a working
position to clean and reshape different sized primer pockets. Which
reamer is used depends upon the size of the primer pocket; for
example they may be of typical pistol and rifle sizes.
The foregoing specification sets forth the invention in its
preferred, practical forms but the structure shown is capable of
modification within a range of equivalents without departing from
the invention which is to be understood is broadly novel as is
commensurate with the appended claims.
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